Nice solution. After I finished this kata in twice the lines I studied your code and rewritten it. Good job!

cough cough, little bit cheat here 😜 queues in the_lift should be constant

Thanks! I had similar problem.

Thanks. Congrats. Merry Xmas :-)

One of the best Kata I've solved (or even looked at) on this website. Struggled a bit in the beginning (mainly because I was misunderstanding the question), but I completed it with a semi-decent solution. Really cool question, thanks!

I can see that you started working on the kata in september, what would be a couple of months ago. I can also see that you are not eligible for points for it, but not because of a cheat or invalidation. All of this means that at some point, possibly long time ago, you have apparently forfeited on the kata.

It's not possible for you to get points for this particular kata anymore. Do not worry though, because there's plenty of blue kata for you to train on.

One more note though:

[...] had no idea how to solve the Kata and just decided to look at the solutions and submit someone else's after reviewing it.

Please remember that when you struggle with some task and want to see solutions, forfeiting is the designed, safe way of achieving this. "submitting someone else's solution and expecting to get it flagged" may not always work as intended, particularly if points were awarded in the process. Not recommended to make it a habit.

Resolved issue. Realized that I was calling .pop_back() on a string that was empty, causing errors. Added a case to handle empty strings and solution was instantly accepted!

Also, I definitely remember reading this Kata in the past, I just never got around to actually doing it. It's definitely plausible that I forfeited a long time ago, looked at the solutions, and just forgot about it.

Dang, I don't remember forfeiting this Kata at all. Guess I must have a long time ago and just forgot :/ is there no way to get points? Completely understand if so. Also for the flagged Kata, that solution definitely wasn't mine (so I completely expected it to get flagged); had no idea how to solve the Kata and just decided to look at the solutions and submit someone else's after reviewing it.

I just checked and it looks as if you have indeed forfeited the kata at some point, I cannot check when exactly though. I can ask, but I am not sure if it is possible to find out.
Your solution to this kata has not been flagged as a cheat nor invalidated by a mod, actually no mod were active at the time you completed it. Your solution to another kata was, but it's not related.

I can ask others for confirmation if you really want to, but on my side it looks like a forfeited kata.

Do you remember when you started working on the kata?